Geometry – Unit 1 Practice
Constructing Congruent Angles
G.CO.D.12
Name: _____________________________!
Date: ___________ Pd: ____





Create one side of your
angle by drawing a ray.
Mark an arc on the given
angle and an equal arc
from the initial point on
your ray.
Using the compass
“measure” the distance
between the arc
intersections on the given
angle.
Without changing the
compass, mark the same
distance on your
drawing.
Connect your initial
point with your
intersection point.
1) Use the “copy an angle” construction to verify that G  Q .
2) Use the “copy an angle” construction to verify that 1  8 .
3) Construct congruent angles:
a)
SNRPDP
b)
Unit 1: Foundations of Geometry
NVACS – Revised 2015-2016
Page 1 of 2
Practice – Unit 1 (cont.)
4) Explain in your own words how to construct an angle that is the sum of two given angles.
____________________________________________________________________________
____________________________________________________________________________
____________________________________________________________________________
5) Construct an angle that is twice the measure of the given angle.
6) Construct an angle that is the difference of the given angles.
Page 2 of 2